Diet quality in adolescents with premenstrual syndrome: A cross-sectional study.

Aim Premenstrual syndrome (PMS) is a complex of symptoms that can seriously affect the quality of life in women. It has been suggested that the nutritional status of adult women may influence the presence and/or severity of PMS symptoms. However, little is known about this association in adolescents. The present study aimed to examine the relationship between diet quality and the presence/severity of PMS symptoms in adolescents. Methods A case-control study of 272 female students, aged 13-18 years, was conducted in a high school. PMS was diagnosed and the symptoms were recorded using Premenstrual Syndrome Scale (PMSS)-2006 in 2 consecutive months. Dietary intake was assessed with 24-hour-dietary intake recall method and Healthy Eating Index-2010 (HEI-2010) score was calculated as an indicator of diet quality. Anthropometric measurements, including body weight, height, waist circumference and hip circumference were taken. Results PMS was diagnosed in 56.9% of the study sample. The mean HEI-2010 score was significantly lower in the PMS group (47.5 +/- 23.95) when compared to the control group (53.5 +/- 20.98), P = 0.034. The PMS symptoms, anxiety (P = 0.009), depressive feelings (P = 0.016) and changes in sleeping pattern (P = 0.000) were associated with lower diet quality scores in the PMS group. No significant difference in anthropometric measurements was observed between the groups. Conclusions The present study suggested that adolescents with a high-quality diet might experience depressive feelings, anxiety or changes in sleeping less when compared to those with a low quality diet. Therefore, the causal relationship between diet quality and presence/severity of PMS should be investigated in further studies.